The SM8S28-LF/2D is a Transient Voltage Suppressor (TVS) diode manufactured by Vishay. This component is designed to protect sensitive electronic devices from voltage surges induced by lightning, electrostatic discharge (ESD), and inductive load switching. It's specifically engineered for applications requiring reliable protection in harsh environments.

Applications

• Automotive Electronics (ECU Protection)
• Industrial Control Systems
• Power Supplies
• Telecom Equipment
• Motor Control Circuits

Features

• Unidirectional Configuration
• 28 V Standoff Voltage
• High Surge Capability: 6600 W Peak Pulse Power (10/1000 μs waveform)
• Excellent Clamping Capability
• Low Incremental Surge Resistance
• Low Leakage Current
• AEC-Q101 Qualified
• RoHS Compliant
• LF suffix indicates a lead (Pb)-free device

Benefits

• Effective Overvoltage Protection: Prevents damage to sensitive electronic components by clamping transient voltages to safe levels.
• High Surge Immunity: Withstands significant surge currents, ensuring continued operation during transient events.
• Automotive-Grade Reliability: AEC-Q101 qualification ensures high reliability in demanding automotive environments.
• Reduced Power Consumption: Low leakage current minimizes power loss and improves system efficiency.
• Environmentally Friendly: RoHS compliance signifies adherence to environmental standards.

Additional Details

The SM8S28-LF/2D functions by diverting excess current away from protected circuits when a voltage surge occurs. The 'LF' suffix denotes that the component is lead-free, aligning with RoHS environmental standards. The '/2D' suffix indicates the packaging format, specifying tape and reel for automated assembly.

Key Specifications:

• Polarity: Unidirectional
• Reverse Standoff Voltage (Vrwm): 28 V
• Breakdown Voltage (Vbr): 31.1 V to 34.4 V
• Clamping Voltage (Vc) @ Ippm: 45.5 V
• Peak Pulse Current (Ippm) @ 10/1000 μs: 14.5 A
• Operating Temperature Range: -65 °C to +175 °C
• Package: DO-220AA (SM8S)

The SM8S28-LF/2D provides reliable protection for automotive and industrial electronics against transient voltage surges, ensuring long-term system performance and reliability.